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IPC 7
B61L-B61L02932

SECTION B – PERFORMING OPERATIONS; TRANSPORTING


B 61RAILWAYS


B 61 LGUIDING RAILWAY TRAFFIC: ENSURING THE SAFETY OF RAILWAY TRAFFIC (power supply lines for electrically propelled vehicles B60M; arrangement of signalling devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; brakes or auxiliary equipment B61H, B61K; point or crossing construction E01B; insulated rail joints E01B 11/54; optical devices in general G02; controlling in general G05; electric communication technique H04)


Note

 This subclass covers:

 devices along the route interacting with trains;

 signals;

 operation of points and signals;

 interlocking;

 block systems;

 level crossings.


Subclass Index

DEVICES ALONG THE ROUTE ACTUATED BY, OR ACTING ON, THE TRAIN AT ITS PASSAGE 

B61L 1/00, B61L 3/00 

RAILWAY SIGNALLING, SWITCHING, BLOCKING, AND INTERLOCKING 

Signals 

per se, local operation mechanisms; remote control; control by passage of vehicles 

B61L 5/00; B61L 7/00; B61L 13/00 

Points 

local operation mechanisms; remote control; control by passage of vehicles 

B61L 5/00; B61L 7/00; B61L 11/00 

switching systems of classification yards 

B61L 17/00 

points and signals interlocking by a single device 

B61L 19/00 

Scotch-blocks: local operation mechanisms; remote control 

B61L 5/00; B61L 7/00 

Station blocking 

B61L 21/00 

TRAFFIC 

Central control systems; recording and indicating traffic data; self-signalling 

B61L 27/00; B61L 25/00; B61L 15/00 

Safety: means concerning railway traffic; protection of road crossings 

B61L 23/00; B61L 29/00 

ILLUMINATION OF POINTS, FORM SIGNALS, AND GATES 

B61L 9/00 



1/

00Devices along the route controlled by interaction with the vehicle or vehicle train (detonators B61L 5/20; operation of points or signals by passage of the vehicle B61L 11/00, B61L 13/00; central traffic control systems controlled by train B61L 27/04; operation of gates, or gates and signals, by approaching vehicle B61L 29/18)

1/

02.Electric devices associated with track

1/

04..mechanically actuated by a part of the vehicle

1/

06..actuated by deformation of rail; actuated by vibration in rail

1/

08..magnetically actuated; electrostatically actuated

1/

10..actuated by electromagnetic radiation; actuated by particle radiation

1/

12.Electric devices associated with overhead trolley wires

1/

14.Devices for indicating the passing of the end of the vehicle or vehicle train

1/

16.Devices for counting axles; Devices for counting vehicles (counting moving objects in general G06M)

1/

18.Railway track circuits (automatically-operated track circuits specially adapted for section blocking for controlling traffic B61L 23/00; rail joints E01B 11/00)

1/

20.Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning


3/

00Devices along the route for controlling devices on the vehicle or vehicle train, e.g. to release brake, to operate a warning signal

3/

02.at selected places along the route, e.g. intermittent control

3/

04..controlling mechanically

3/

06..controlling by electromagnetic or particle radiation, e.g. by light beam (using radio waves B61L 3/12)

3/

08..controlling electrically

3/

10...using current passing between devices along the route and devices on the vehicle train

3/

12...using magnetic or electrostatic induction; using radio waves

3/

14..to cut-off the power supply to traction motors of electrically-propelled vehicles

3/

16.Continuous control along the route

3/

18..using electric current passing between devices along the route and devices on the vehicle or vehicle train

3/

20...employing different frequencies or coded pulse groups

3/

22..using magnetic or electrostatic induction; using electromagnetic radiation

3/

24...employing different frequencies or coded pulse groups


5/

00Local operating mechanisms for points or track-mounted scotch-blocks (track-mounted scotch-blocks per se B61K); Visible or audible signals; Local operating mechanisms for visible or audible signals (B61L 11/00 takes precedence)

5/

02.Mechanical devices for operating points or scotch-blocks

5/

04.Fluid-pressure devices for operating points or scotch-blocks

5/

06.Electric devices for operating points or scotch-blocks

5/

08.Underground actuating arrangements, e.g. for tramways

5/

10.Locking mechanisms for points; Means for indicating the setting of points

5/

12.Visible signals

5/

14..Form signals, e.g. semaphore arms

5/

16...Local operating mechanisms for form signals

5/

18..Light signals; Mechanisms associated therewith, e.g. blinders

5/

20.Audible signals, e.g. detonator

5/

22..Devices for initiating the release of detonators in a certain position of a signal

5/

24..Replacement of detonators


7/

00Remote control of local operating means for points, signals, or track-mounted scotch-blocks (B61L 11/00 takes precedence; interlocking arrangements B61L 19/00)

7/

02.using mechanical transmission, e.g. wire, lever

7/

04.using fluid-pressure transmission

7/

06.using electrical transmission

7/

08..Circuitry

7/

10...for light signals, e.g. for supervision, back- signalling


9/

00Illumination specially adapted for points, form signals, or gates (lighting in general F21)

9/

02.non-electric

9/

04.electric


11/

00Operation of points from the vehicle or by the passage of the vehicle

11/

02.using mechanical interaction between vehicle and track

11/

04..Trailable point locks

11/

06..with fluid-pressure transmission

11/

08.using electrical or magnetic interaction between vehicle and track


13/

00Operation of signals from the vehicle or by the passage of the vehicle

13/

02.using mechanical interaction between vehicle and track

13/

04.using electrical or magnetic interaction between vehicle and track


15/

00Indicators provided on the vehicle or vehicle train for signalling purposes

15/

02.Head or tail indicators, e.g. light


17/

00Switching systems for classification yards (rail brakes B61K)

17/

02.Details, e.g. indicating degree of track filling


19/

00Arrangements for interlocking between points and signals by means of a single interlocking device (station block arrangements B61L 21/00)

19/

02.Interlocking devices having mechanical or fluid-pressure operation

19/

04..Details, e.g. hand lever, back-signalling device

19/

06.Interlocking devices having electrical operation

19/

08..Special arrangements for power supply for interlocking devices

19/

10..with mechanical locks

19/

12...Details

19/

14..with electrical locks

19/

16...Details


21/

00Station blocking between signal boxes in one yard (interlocking between points and signals by means of a single interlocking device B61L 19/00)

21/

02.Mechanical locking and release of the route; Repeat locks; Coupling of semaphores

21/

04.Electrical locking and release of the route; Electrical repeat locks

21/

06.Vehicle-on-line indication; Monitoring locking and release of the route

21/

08.Order transmission and reception arrangements for giving or withholding permission

21/

10.Arrangements for trains which are closely following one another (automatic central traffic control systems B61L 27/04)


23/

00Control, warning or like safety means along the route or between vehicles or vehicle trains  [4]

23/

02.for indicating along the route the failure of brakes

23/

04.for monitoring the mechanical state of the route

23/

06.for warning men working on the route

23/

08.for controlling traffic in one direction only (station blocking between signal boxes in one yard B61L 21/00)

23/

10..manually operated

23/

12..partly operated by train

23/

14..automatically operated

23/

16...Track circuits specially adapted for section blocking

23/

18...specially adapted for changing lengths of track sections in dependence upon speed and traffic density

23/

20...with transmission of instructions to stations along the route

23/

22.for controlling traffic in two directions over the same pair of rails (station blocking between signal boxes in one yard B61L 21/00)

23/

24..using token systems, e.g. train staffs, tablets

23/

26..with means for actuating signals from the vehicle or by passage of the vehicle

23/

28..using non-automatic blocking from a place along the route

23/

30..using automatic section blocking

23/

32...with provision for the blocking of passing sidings

23/

34.Control, warning or like safety means indicating the distance between vehicles or vehicle trains by the transmission of signals therebetween  [4]


25/

00Recording or indicating positions or identities of vehicles or vehicle trains or setting of track apparatus

25/

02.Indicating or recording positions or identities of vehicles or vehicle trains

25/

04..Indicating or recording train identities

25/

06.Indicating or recording the setting of track apparatus, e.g. of points, of signals

25/

08..Diagrammatic displays


27/

00Central traffic control systems

27/

02.Manual systems

27/

04.Automatic systems, e.g. controlled by train; Change-over to manual control


29/

00Safety means for rail/road crossing traffic

29/

02.Guards or obstacles for preventing access to the route (cattle guards connected to the permanent way E01B 17/00)

29/

04.Gates for level crossings

29/

06..yielding to vehicles in one direction but operated in a different direction

29/

08.Operation of gates; Combined operation of gates and signals

29/

10..Means for securing gates in their desired position

29/

12..Manual operation

29/

14...mechanically

29/

16...electrically

29/

18..Operation by approaching rail vehicle or rail vehicle train

29/

20...mechanically

29/

22...electrically

29/

24.Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning

29/

26..mechanically operated

29/

28..electrically operated

29/

30...Supervision, e.g. monitoring arrangements

29/

32...Timing, e.g. advance warning of approaching train

  
 

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